Frank denninger



(No Model.) 8

F. DENNINGER.

Wood Bending Machine.

No. 228,878. Patented June 15,1880.

WITNESSES:

ATTORNEYS.

UNITED STATES PATENT OFFICE.

FRANK DENNINGER, OF NEWsYORK, N. Y.

WOOD-BENDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 228,878, dated June 15,1880 Application filed April 5, 1880. (No model.)

To all whom it may concern:

Be it known that I, FRANK DENNINGER, of the cit-y, county, and State ofNew York, have invented a new and useful Improvement in \Vood-BeudingMachines or Presses for Bending and Veneering Piano-Forte Rims, of whichthe following is a specification.

The object of my invention is to construct a press for bending rims ofpiano-fortes to the shape required, and at the same time veneering therims, by which press a number of the rims may be operated on at once.

My invention consists in a press-bed of rect angular form havingcombined with it loose presser-blocks of the shape to which the rims areto be pressed, and fitted with clamping shackles and screws forcompressing and holdin g the rims which areplaced between the blocks inthe press. The presser-blocks are also fitted with adjustable gages forretaining the rims in position.

The improved press'is shown in the accompanying drawings, wherein Figure1 is a side elevation. Fig. 2 is a vertical section on line as m of Fig.1.

Similar letters of reference indicate corresponding parts.

A is the stand of the press supporting the bed, which consists of theshort side portion, a, and long side, a, forming the rectangular bed.These side pieces, a a, are tied by bolts 1), and are fixed with theangle at the center of stand A.

Upon the stand A is fitted a shackle, B, composed of a side bar, 0,

end bars, (I d, and

strap 6, connecting the end bars, d. The upper end bar, (1, is fittedwith screws h h.

0 are the presserblocks, made to the shape to which the rims are to bebent, and fitted with strips or gagesff at their ends, which retain theblocks 0 apart and prevent end movement of the rims. The stripsff areadjustable on each block 0, so as to be moved in or out, according tothe length of the rim.

1) D are shackles or clamps placed around the side a of the bed and theblocks 0, and fitted with screws 9 for clamping those parts together.

In using this press the shackles D and the strap eof shackle B are firstremoved, and the blocks 0 then put in place with the rimsi between them.The strap cand shackles D are then applied and the screws h 9 turned tobring the blocks tightly together. By these means four or more rims maybe pressed at once and the same bend given to each.

The veneering will be applied to the rims immediately before they areplaced in the press, and by the bending operation will be pressedtightly to place.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- The combination, in a wood-bending machine, with theframe A, of the angular bed a a, the clamps B I), having screws h g, andthe presser-blocks U, having gages f, for the special purpose set forth.

GEO. D. WALKER, O. SEDGWICK.

